ST3485E STMicroelectronics, ST3485E Datasheet - Page 7

• Manufacturer Part Number: ST3485E
• Description: TRASMIT AT UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER
• Manufacturer: STMicroelectronics

ST3485E
Table 9.
Table 10.
Symbol
t
t
Symbol
ZH(SHDN)
ZL(SHDN)
R
I
t
I
V
V
V
OSR
SKEW
OZR
t
t
t
t
t
V
t
t
t
D
t
PDS
PZH
PHZ
RIN
PLH
PHL
OH
PZL
PLZ
TH
OL
DD
TD
TH
R
Receiver differential
threshold voltage
Receiver input hysteresis
Receiver output high
voltage
Receiver output low
voltage
3-State (high impedance)
output current at receiver
Receiver input resistance
Receiver short-circuit
current
Maximum data rate
Differential output delay
Differential output
transition time
Propagation delay
|t
delay skew
Output enable time
Output enable time
Output disable time
Output disable time
Differential output delay
skew
Driver enable from
shutdown to output high
Driver enable from
shutdown to output low
Receiver electrical characteristics
V
to T
Driver switching characteristics
V
to T
PLH -
CC
CC
a
a
= 3V to 3.6V, T
= 3V to 3.6V, T
= 25°C)
= 25°C)
Parameter
t
PHL
Parameter
| Propagation
(Note
2)
A
A
= -40 to 85°C, unless otherwise specified. Typical values are referred
= -40 to 85°C, unless otherwise specified. Typical values are referred
V
V
I
(Figure 8.
I
V
V
V
OUT
OUT
R
Figure
R
Figure
R
Figure
R
Figure
R
R
R
R
CM
CM
CC
CM
RO
L
L
L
L
L
L
L
L
= 60 , C
= 60 , C
= 27 , C
= 27 , C
= 110 ,
= 110 ,
= 110 ,
= 110
= 3.6VV
= 0V to V
= -7V to 12V, DE = 0
= 0V
= -7V to 12V
= -4mA, V
= 4mA, V
5.)
5.)
9.)
9.)
and
Test Conditions
(Figure 10.
(Figure 6.
(Figure 6.
(Figure 10.
Test Conditions
L
L
L
L
O
CC
= 15pF,
= 15pF,
= 15pF,
= 15pF,
ID
Figure
= 0V to V
ID
= -200mV,
= 200mV
9.)
(Figure 4.
(Figure 4.
(Figure 8.
(Figure 8.
and
and
and
and
CC
Figure
Figure
(Figure
Figure
Figure
and
and
and
and
7.)
7.)
11.)
11.)
3.)
Min.
-0.2
24
Min.
2
7
12
Electrical characteristics
Typ.
Typ.
70
15
18
12
18
19
30
19
30
30
19
2
1
Max.
Max.
0.2
0.4
60
30
20
30
35
50
35
50
50
35
5
3
1
Mbps
Unit
Unit
K
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
A
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